Amazing

This product is honestly amazing! Its smells so good and makes my hair very soft. Ive definitely noticed a decrease in hairfall as well. So good! Highly recommend.

Originally posted on  kerastase.ca

A vitamin for your hair

[This review was collected as part of a promotion.] I call this vitamins for your hair. My hair looks better and has less breakage.

Originally posted on  kerastase-usa.com

Es excelente

Este producto cumple lo que promete en poco tiempo! Mi cabello tenía mucha pérdida y lo he mejorado con este producto!

Originally posted on  kerastase-usa.com

The favorite one

[This review was collected as part of a promotion.] I love this product!! I ordered one at month, that help me with my dry hair and my damage sections, 100% recommends if your hair is damage

Originally posted on  kerastase-usa.com

The best thing ever

[This review was collected as part of a promotion.] First of all smell is amazing After using this product for a week i saw a big difference on hair falling.

Originally posted on  kerastase-usa.com

Love this product!!!

perfect! smells feels amazing! I have been using it for 3 weeks and can see the results already

Originally posted on  kerastase-usa.com

Genesis

This product has really made my hair grow stronger, and it smells amazing!

Originally posted on  kerastase-usa.com

No more hair loss

[This review was collected as part of a promotion.] It works great on me, no more hair loss after just couple uses

Originally posted on  kerastase-usa.com

Best hair serum I never have before

[This review was collected as part of a promotion.] It’s amazing product I love it so much definitely buy again

Originally posted on  kerastase-usa.com

Serum

Tried ordering another because I loved it so much, but I guess everyone else does too because you are out of it

Originally posted on  kerastase-usa.com

Fallout

[This review was collected as part of a promotion.] This has given me immediate results with fallout and I can tell it is going to improve my hair.

Originally posted on  kerastase-usa.com

Def buy

Great product, actually works and does not leave your hair greasy

Originally posted on  kerastase-usa.com

Inutile

Voilà 3 semaines que je l'utilise, aucun effet pour l'instant et le flacon sera vide d'ici moins d'une semaine d'utilisation... vu le prix, je n'en rachèterai pas. Point positif : il sent bon

Originally posted on  kerastase.fr

Can’t get over the terrible scent

This smells so strongly like cheap perfume! I can’t get over it! I love the green serum but it was out of stock so tried this and the 8H magic. Both smell so bad that I’m not sure I can stomach putting them on my scalp.

Originally posted on  kerastase-usa.com

Already noticing less shedding!

Great smelling product , already feel like my scalp is healthier in just a few short weeks , can’t wait to continue

Originally posted on  kerastase-usa.com

Great purchase

I can see new hair growth and my hair are thicker and stronger

Originally posted on  kerastase-usa.com

Feels like water

Really disappointed with the latest fortifying serum. It feels like water and it's keep dripping on my face. It wasn't like this before when I purchased my first from a different website

Originally posted on  kerastase-usa.com

Caused irritation

Really wanted to love this expensive product, unfortunately it made my hair sticky, irritated my scalp and caused me dandruff. All that money down the drain.

Originally posted on  kerastase-usa.com

So far so good!

I’m about a month in to using this product.. I use it on non wash days before bed.. love the smell and refreshes my scalp.. starting to see some baby hairs grow in! Just live it so far!

Originally posted on  kerastase-usa.com

Wonderful product!

Great serum with excellent fragrance! Very light weight, feels wonderfully fresh, and looks like it will nourish my hair and help with density.

Originally posted on  kerastase-usa.com

Returned due to awful smell

Seriously smells awful! I had to wash my hair and pillow covers to get rid of the smell! No idea if the product is effective or not!

Originally posted on  kerastase-usa.com

So far so good !!

Haven’t really used it for long to really notice big results, but so far I have notice much less hair shedding, I love the smell ! Leaves a nice tingly sensation on scalp

Originally posted on  kerastase-usa.com

Definitely Great Purchase

Sweet long last smell to enjoy at night while my hair repairing.

Originally posted on  kerastase-usa.com

Amazing Product!!!

This product delivers!!! My hair fall stopped almost immediately after I started using this product. I have actually been using it for 3 months now and I wanted to wait before writing a review to make sure it wasn’t short results. My hair feels amazing with this product and several other products I have tried dried my hair out so I 100% recommend this to anyone with hair fall out.

Originally posted on  kerastase-usa.com

Pour l instant, je constate malheureusement très peu de résultat que ce soit dans la réduction de la chute que dans la qualité des cheveux…

Originally posted on  kerastase.fr

Great scalp serum

Just love it. Smells great, feels great, waiting for long term results.

Originally posted on  kerastase-usa.com

Amazing

Kérastase’s hair serum is a game-changer for anyone looking to transform their hair care routine. Infused with advanced nourishing ingredients, it deeply hydrates and strengthens hair, leaving it incredibly soft, smooth, and shiny without feeling greasy. The lightweight formula absorbs quickly, making it perfect for all hair types, from fine to thick, and it helps control frizz while enhancing natural texture.

Originally posted on  kerastase-usa.com

Amazing Product

I use this 2-3 times a week. It smells amazing and I ALWAYS get comments like, “your hair smells so good!” every time I apply it. Keeps my scalp healthy and hair growing strong.

Originally posted on  kerastase-usa.com

I did see a improvements

I liked the serum, I can't say that the problem with hair loss has been solved, but there is an improvement. For best results, the serum should be used once every three days or more often.

Originally posted on  kerastase-usa.com

The best hair serum

My hair has been much stronger since Ive been using this serum paired with my vitamins.

Originally posted on  kerastase-usa.com

Fabulous smells

In addition to helping me restore the health of my hair, it also leaves a wonderful scent on my hair.

Originally posted on  kerastase-usa.com

I PAID FULL PRICE! What MAGICAL SERUM is this?!!

This is a REAL RARE REVIEW*** Fantastic! I’d read review after review of this, then it kept coming up in my social media feeds. Untrusting me wondered if I was just a victim of sponsered paid influencers and algorithms but I decided to give it a go to see// IT WORKS!! Incredible stuff. My hair fall is hardly any at all anymore after using this daily for 2 weeks. It’s very light, I use it everyday (massage into your scalp with freshly washed hands and fingers;) them prepare for the magic to happen. I’m hooked!

Originally posted on  kerastase-usa.com

It’s an OK scalp serum

[This review was collected as part of a promotion.] I like that this serum doesn’t leave my hair greasy like the OUAI scalp serum or other serums, but I don’t love the fact that the scent is super strong. It smells good, but it’s too much sometimes and it makes me nauseous. It’s also pretty expensive. I don’t notice hair growth with this like I do with the ouai serum. So I feel like it’s okay. It doesn’t do anything positive, but nothing negative.

Originally posted on  kerastase-usa.com

So happy I purchased!!

[This review was collected as part of a promotion.] My hair was falling more than usual, so I decided to give this a try & I am so happy I did! The hair falling has definitely reduced and I have noticed my hair feeling thicker and healthier. I will be repurchasing & keeping part of my nightly hair routine!!

Originally posted on  kerastase-usa.com

Smells great

A little tricky to use as it’s super liquidy and I couldn’t keep it in my palms to transfer onto my ends. Does smell great tho

Originally posted on  kerastase-usa.com

Must have.

Love it. First time using and have been very impressed with it.

Originally posted on  kerastase-usa.com

Exceeded my expectations

[This review was collected as part of a promotion.] If you have dry, frizzy hair that falls out a lot, I recommend that you buy this serum, my hair looks shinier, the frizz has diminished and less hair falls out. I am very happy with my purchase

Originally posted on  kerastase-usa.com

Love this product!

Love this serum. Definitely less hair falling out since using it

Originally posted on  kerastase-usa.com

Buy it!

I am seeing new growth after using this product consistently.

Originally posted on  kerastase-usa.com

lightweight and effective

super lightweight and absorbs easily into the scalp!

Originally posted on  kerastase-usa.com

Great!

Great product; just wish it was a bit more affordable.

Originally posted on  kerastase-usa.com

Great product

Easy to use, nice smell, well absorb with no greasy

Originally posted on  kerastase-usa.com

Amazing

Best hair serum i could ever have asked for !!! Reduces hair fall snd leaves your hair smelling amazing!

Originally posted on  kerastase-usa.com

Serum

I just received it and try on the serum, the smells is fantastic. It makes my scalp has a clean feelings and even ready to go out without any perfume on. I will need to use it for a period of time to see if it helps, I sure will come back and write another review

Originally posted on  kerastase-usa.com

hair serum

[This review was collected as part of a promotion.] makes my scalp so healthy. i love this hair serum. recomended

Originally posted on  kerastase-usa.com

I think it’s working

Been using this alongside the genesis mask. I think this has been helping my hair as I’ve noticed less breakage but will probably take some time.

Originally posted on  kerastase-usa.com

Best hair serum I ever had

[This review was collected as part of a promotion.] After using it for 6 months, most of my friends said my hair grows more. I can also feel that this product does not contain harmful chemicals. It won’t irritate my head like other brands. I will keep using it consistently

Originally posted on  kerastase-usa.com

My new friend for my hair recommended , i help my

It work good on my hair You should try Hight recommended

Originally posted on  kerastase-usa.com

Wonderful product

[This review was collected as part of a promotion.] The product is wonderful, light and smells great!! I'm excited about my purchases!

Originally posted on  kerastase-usa.com

Amazing!

I can see the difference already! Would def recommend to others!

Originally posted on  kerastase-usa.com

Very watery

This is too liquid for my taste. Also left my hair feeling dry.

Originally posted on  kerastase-usa.com

Good treat but lot of usay

[This review was collected as part of a promotion.] I liked but you should use daily for 6 weeks amd the product serve less than that

Originally posted on  kerastase-usa.com

Exceptional

Just loved the products and the way my hair looks like

Originally posted on  kerastase-usa.com

Best serum of the year

[This review was collected as part of a promotion.] You shouldd buyyyy it nowwwwwwwwwwwwwwwwwwwwwwwwww

Originally posted on  kerastase-usa.com

Works great and smells soo good

After one month I could feel the difference and every time I use it my hair smells like i just left the salon

Originally posted on  kerastase-usa.com

Love it

[This review was collected as part of a promotion.] I started using this serum a couple of weeks ago. I love the way it makes my hair look shiny and healthy, and it feels super soft. It doesn’t leave it looking greasy or weighed down.

Originally posted on  kerastase-usa.com

Love the smell!

[This review was collected as part of a promotion.] It really works and I would buy it again! It smells wonderful and leaves my hair strong and shiny

Originally posted on  kerastase-usa.com

Hair serum

Beat serum I have tried so far. After Covid-19 infection my hair was falling out and my hair dresser recommended this hair serum and it’s worth every dollar.

Originally posted on  kerastase-usa.com

Love it!

Drastically improved my hair fall, shedding much less and added lots of growth. For me particularly i was experiencing a lot of hair shedding and this seriously helped improve that. The bottle is a bit janky though, the dripper/pipette thing is it a bit wonky on mine but I love the product !

Originally posted on  kerastase-usa.com

Hair grow

[This review was collected as part of a promotion.] This product is so amazing, my hair look fuller and better , I recommended to my friends and family use it

Originally posted on  kerastase-usa.com

Love This Product

[This review was collected as part of a promotion.] Is Product makes a difference in the finish of your hair after blow drying?

Originally posted on  kerastase-usa.com

This is my third bottle!

I initially tried out the sample size to test how my hair responded to it, as well as the absorbency and smell. With a little patience you will see that this serum really works! After 6 weeks of constant use (almost every day) I saw a major difference in my hair fall. Whether or not I used at night or day, it absorbed quickly in my hair without leaving it feeling greasy. I will be buying this again and again. It’s a permanent product in my routine.

Originally posted on  kerastase-usa.com

I've never loved a hair product so much

[This review was collected as part of a promotion.] I'm obsessed with this hair serum - my hair feels, looks, and overall is so much healthier and shinier. My hair has less breakage and overall feels like silk. I will always continue to purchase Kerastase as I love this brand so much

Originally posted on  kerastase-usa.com

Reduce hair fall from brushing

It makes a difference between using and not using the Genesis serum. I finished a bottle and then took a while to repurchase the serum. I notice my hair looks healthier and less hair fall when using the serum compared to when I don’t use the serum.

Originally posted on  kerastase-usa.com

Spend the money!!!

Within a couple days my hair loss SIGNIFICANTLY diminished. I almost cried tears of joy, I’m not even kidding. I hate spending money but this is something I would 10000% splurge for.

Originally posted on  kerastase-usa.com

magic in a bottle

[This review was collected as part of a promotion.] Smells fabulous and works great! Calificado en Estados Unidos el 12 de noviembre de 2024 I’ve tried many scalp serums for hair loss and let me say, this is the best on the market. I have fine hair so I’m very picky about scalp serums that make me even a little greasy. It smells so good and trust me when I say this will not make your scalp greasy. Highly recommend this to anyone looking for a scalp serums that smells fabulous and actually does its job!

Originally posted on  kerastase-usa.com

You will keep coming back to this!

Let me start by mentioning that I have thin, fine hair. I was at a point where I had stared thinking about getting a wig but I am so so grateful that I found this product. I have tried few other serums but this one works like magic. Please be consistent and feel the difference in your hair fall in a month. It doesn’t make hair greasy. It has water like consistency and one bottle will last you a long time. I just love this serum!

Originally posted on  kerastase-usa.com

Perfeito

São tantos produtos e eu queria experimentar todos . Apaixonei por essa decisão de Kérastase na minha vida

Originally posted on  kerastase-usa.com

great but doesn’t last long

[This review was collected as part of a promotion.] "I have been experiencing hair fall due to COVID-19, so I started using this product. My hair fall has slowed down, but I have only been using this product for about a week, so I have high hopes for the results after the first six weeks. One downside is that the 90ml bottles do not last long. I have been using it for a week, and it is already halfway gone, even though I use it according to the directions."

Originally posted on  kerastase-usa.com

Impressive

[This review was collected as part of a promotion.] I’m impressed with this serum so far. It doesn’t make my hair oily, and I feel like a little goes a long way. Hoping it helps with my breakage and hair loss long term!

Originally posted on  kerastase-usa.com

Good buy!

[This review was collected as part of a promotion.] Smells really good! And I’ve already noticed a difference while brushing my hair

Originally posted on  kerastase-usa.com

Lightweight and Effective

[This review was collected as part of a promotion.] This product strengthens and beautifies my hair. It adds shine and strength without weighing it down. It also helps my sensitive scalp to feel better.

Originally posted on  kerastase-usa.com

Amazing!

[This review was collected as part of a promotion.] It’s very light. Easy to use and doesn’t weigh my hair done. I’m 4 weeks into using my ends are doing great breakage of my hair has stopped!

Originally posted on  kerastase-usa.com

Love it!

Love the smells and can see the result after a few times to use.

Originally posted on  kerastase-usa.com

No difference yet...

[This review was collected as part of a promotion.] I’ve been using the Serum Fortifiant Hair Serum for a while now, but unfortunately, I haven’t noticed any improvement with my thinning hair. While the application process is easy and the serum has a pleasant feel, it hasn’t delivered the results I was hoping for. I’ll continue to use it for a bit longer to see if time makes a difference, but so far, it hasn’t lived up to my expectations.

Originally posted on  kerastase-usa.com

10/10

[This review was collected as part of a promotion.] Repurchased this product even my fiancé likes it!!

Originally posted on  kerastase-usa.com

Miracle product !

I have been using this serum for one month, and I just received my second bottle. I should finish the treatment in December as recommended. My hair was falling out significantly, especially when washing it. After a month, I’d say the hair loss has improved by about 50%. I apply the serum every day and consistently brush my hair at night. I also sleep with a braid. So far, it has helped me, and I truly recommend it.

Originally posted on  kerastase-usa.com

Favorite product

leave the fragrance on your hair like Dior perfume. Doesn't make your hair sticky. Love it.

Originally posted on  kerastase-usa.com

I do NOT recommend this product

I have purchased this product for the first time and it has done NOTHING to my hair. Its like water and does not fortify weakened hair as it is marketed. I am very disappointed.

Originally posted on  kerastase-usa.com

Me está sorprendiendo

Estoy notando cambios antes de me quebraba más el cabello ya ahora casi no y eso que aún no termino todo el pomo

Originally posted on  kerastase-usa.com

Love this!

[This review was collected as part of a promotion.] My favorite part is the smell. A very important detail, because if it doesn’t smell good, I don’t want it on my head all day. I can tell a difference in the viability of my hair!

Originally posted on  kerastase-usa.com

Anti-Hair fall serum

It is too liquidy than previous purchase, not sure if they changed formula. Now as soon as I apply it it runs down my face or neck.

Originally posted on  kerastase-usa.com

Vitamins for your hair!

[This review was collected as part of a promotion.] Been using the entire product lineup and seeing great improvements with my hair concerns. Also smells amazing!

Originally posted on  kerastase-usa.com

Love this ♥️ você não pode viver sem

Love it 😍 não posso viver sem. Simplesmente faz parte do meu cuidado diário com meus cabelos

Originally posted on  kerastase-usa.com

Help a lot

Much less hairloss now.. smells good..not sticky.. yeay

Originally posted on  kerastase-usa.com

Worth it

This serum has a award winning so there is bi doub about the quality

Originally posted on  kerastase-usa.com

Good product

Great one to use.Hair feel soft and bright afterwards.

Originally posted on  kerastase-usa.com

Excellent product

[This review was collected as part of a promotion.] I just finished the whole bottle of this serum! Love it so much! My hairs have improved a lot.

Originally posted on  kerastase-usa.com

The best product

I have been struggling thair loss and trying to keep my hair from braking or falling for ever!! Serum Fortifiant hair is helpng me so much, I can notice the difference an it makes my hair not only strong, but also looking so healthy and shine!

Originally posted on  kerastase-usa.com

Absolutely works!

This fortifying serum absolutely works to help prevent hair fall! I use the entire genesis line and this serum is a must. It smells fantastic —just like the shampoo and conditioner. It absolutely helps prevent hair fall and breakage. I can definitely tell a difference on the days I forget to use it. It doesn’t make the hair greasy at all. I use one full dropper on my scalp and my hair is long and fine. 5 stars!

Originally posted on  kerastase-usa.com

Good Buy

[This review was collected as part of a promotion.] Have been using this for the past 3+ months, a little product goes a long way. Happy that it is non greasy and absorbs quickly.

Originally posted on  kerastase-usa.com

Impressive results

I used it for 6 weeks and I started seeing results!

Originally posted on  kerastase-usa.com

love it

[This review was collected as part of a promotion.] so smooth and smells sooo goooood, i love how it has made my hair so thick

Originally posted on  kerastase-usa.com

Will buy again!

I've been using Kerastase Serum Fortifiant for a few weeks, and I’m really impressed. My hair feels stronger, with less breakage, and it has a noticeably healthier shine. It's lightweight, absorbs quickly, and doesn’t weigh my hair down. Definitely a game-changer for boosting volume and resilience!

Originally posted on  kerastase-usa.com

Good product but not as a hair fall treatment

Used after washing my hair. Feels very smooth and refreshing but it can’t be used as your main hair fall treatment.

Originally posted on  kerastase-usa.com

Happy Serum

Just started using but so far liking it. hair seems healthier

Originally posted on  kerastase-usa.com

Leaves scalp clean

[This review was collected as part of a promotion.] I love the smell and the feeling of the serum, its a little minty and leaves my scalp thingling

Originally posted on  kerastase-usa.com

Hair Serum

[This review was collected as part of a promotion.] My hair never felt more nourished and not greasy or weighted down

Originally posted on  kerastase-usa.com

Caused my hair to fall out

This made my hair fall out in CHUNKS!! I would not recommend. I purchased this to strengthen and increase hair growth on my scalp and it did the exact opposite. I have always loved Kerastase products but am so disappointed and frustrated in this particular product.

Originally posted on  kerastase-usa.com

Worth it!

[This review was collected as part of a promotion.] Lovely scent, although it can be strong. Not actually oily, nor is it drying. I've noticed a huge reduction in my hair fall during brushing and washing. Worth the expense, for sure.

Originally posted on  kerastase-usa.com